Product Description
Engineered with Hitachi's renowned ZX-3 series precision, this 2016 ZX70-3 delivers 7-ton performance through advanced hydraulic architecture and proven Isuzu power. At its core, the AU-4LE2X engine generates 40.5 kW at 2,000 rpm, driving a dual variable axial piston pump system with maximum flow of 72.6 l/min per main pump. Working hydraulic circuits operate at 26 MPa, providing 55 kN bucket digging force and 38 kN arm digging force—critical metrics for demanding excavation work.
Technical Specifications:
- Operating weight: 6,470 kg with 0.33 m³ bucket capacity
- Maximum digging reach: 6,320 mm / digging depth: 4,170 mm
- Water-cooled 4-cylinder Isuzu diesel, 2.2L displacement
- Dual-speed travel: 3.4/5.3 km/h with variable axial piston motors
- 360-degree rotation at 10.5 rpm via axial piston motor
- Ground pressure: 30 kPa across 450 mm track plates
- Hydraulic system capacity: 100L with 60L tank reserve
Currently located in Guizhou, this joint-venture manufactured excavator combines Japanese engineering standards with field-proven component durability. Complete technical documentation available upon request.
| Specifications | Value |
|---|---|
| No. | 1025581 |
| Tonnage (tons) | 7 |
| Working weight (kg) | 6470 |
| Bucket capacity (m³) | 0.33 |
| Boom length (mm) | 3720 |
| Rod length (mm) | 1620 |
| Country of origin | Japan |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Isuzu AU-4LE2X |
| Rated power (kw/rpm) | 40.5/2000 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 85 x 96 |
| Number of cylinders (PCS) | 4 |
| Displacement (L) | 2.2 |
| Ground specific pressure (Kpa) | 30 |
| Rotation speed (rpm) | 10.5 |
| Climbing ability (%) | 70 |
| Bucket digging force (kN) | 55 |
| Rod digging force (kN) | 38 |
| Travel speed (km/h) | 3.4/5.3 |
| Rotary hydraulic motor type | Axial piston motor |
| Type of walking hydraulic motor | Variable axial piston motor |
| Maximum flow of main pump (l/min) | 72.6 * 2 + 61.6 + 22.0 |
| Traveling Hydraulic Circuit (Mpa) | 31.4 |
| Rotary Hydraulic Circuit (Mpa) | 23 |
| Main pump type | Variable axial piston pump ×2+ gear pump |
| Working Hydraulic Circuit (Mpa) | 26 |
| Pilot Oil Circuit (MPa) | 3.9 |
| Fuel Tank (L) | 135 |
| Hydraulic Tank (L) | 60 |
| Engine Oil changes (L) | 12.1 |
| Coolant (L) | 10.3 |
| Hydraulic System (L) | 100 |
| Total transport length (mm) | 6080 |
| Total transport width (mm) | 2260 |
| Total transport height (mm) | 2600 |
| Full cab height (mm) | 2600 |
| Counterweight ground clearance (mm) | 760 |
| Minimum ground clearance (mm) | 360 |
| Minimum turning radius of front working device (mm) | 1720 |
| Back end turning radius (mm) | 1750 |
| Total track length (mm) | 2765 |
| Track gauge (mm) | 1750 |
| Track plate width (mm) | 450 |
| Total track width (mm) | 2200 |
| Track ground length (mm) | 2140 |
| Maximum digging radius (mm) | 6320 |
| Maximum digging depth (mm) | 4170 |
| Maximum excavation height (mm) | 7150 |
| Maximum unloading height (mm) | 5060 |
| Maximum vertical digging depth (mm) | 3730 |
| Bulldozer lift or depth (mm) | 360/300 |
| Dodging plate width × height (mm) | 2200 x 460 |
| Maximum excavation radius of stop surface (mm) | 6170 |
| Maximum effective digging depth (mm) | 3820 |
see more
WhatsApp
Facebook
